package com.lbc.proxystatic;

/*
推导lambdal表达式
 */
public class TestLambda {

    // 3.静态内部类
    static class Like2 implements ILike {

        @Override
        public void lambda() {
            System.out.println("i like lambda2");
        }

    }

    public static void main(String[] args) {
        ILike like = new Like();
        like.lambda();

        like = new Like2();
        like.lambda();

        //  4.局部内部类
        class Like3 implements ILike {
            @Override
            public void lambda() {
                System.out.println("i like lambda3");
            }
        }
        like = new Like3();
        like.lambda();

        //  匿名内部类
        like = new ILike() {
            @Override
            public void lambda() {
                System.out.println("i like lambda4");
            }
        };
        like.lambda();

        //  3.用lambda简化
        like = () -> {
            System.out.println("i like lambda5");
        };
        like.lambda();

    }
}

// 1.定义一个函数式方法
interface ILike {
    void lambda();
}

//  2.实现类
class Like implements ILike {

    @Override
    public void lambda() {
        System.out.println("i like lambda");
    }

}